Lawn Mowers how to change the spark plugs in a toro time cutter zero turn

Published on April 27th, 2015 | by Kimberly Myers


How to Change the Spark Plugs on a Toro TimeCutter Zero Turn Mower

Changing Spark Plugs — one of the cheapest and easiest fixes to solve engine problems.

Whether you just need a refresher on spark plug maintenance, or have never even heard of a spark plug, here is a guide that will tell you what to look for with your spark plugs and how to replace them if necessary.


Be sure to check your owner’s manual for specific information regarding the spark plugs and additional safety and maintenance information.

What You Will Need:

  • Toro Time Cutter Zero Turn Mower
  • New Spark Plugs
  • Deep Socket Wrench
  • Gap Gauge

Step 1:

Park mower on a level surface.

Step 2:

Put on the parking brakes.

Step 3:

Disengage the blade switch.

Step 4:

Stop engine, remove the key.

Step 5:

Allow the engine to cool before performing any maintenance.

Step 6:

Locate the ignition wire.

Step 7:

Clean the area around the base of the plug before removing it to prevent dust and debris from contaminating the engine.

Step 8:

Take off the ignition wire.

Step 9:

Use a deep well socket to remove plug and metal washer.

Step 10:

Examine center of the spark plug, if you see light brown or gray on the insulator, the engine is operating properly and the spark plug is still in good working condition.

Step 11:

Check the gap between the center and side electrodes with a feeler gauge, be sure the gap is set at .30 of an inch if the gap is not correct then the side electrode needs to be adjusted.

Step 12:

If you see a black coating on the insulator is usually means the air cleaner is dirty and the spark plug needs to be replaced (check engine manual for specific spark plug info).

Step 13:

Install the new spark plug by tightening the plug with the socket wrench.

Step 14:

Reconnect the ignition wire.

Remember: Single cylinder engines only have 1 spark plug while twin cylinder engines have 2.

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Jack’s Safety Tips: Before servicing or repairing any power equipment, disconnect the spark plug and battery cables. Remember to wear appropriate safety glasses and gloves to protect against harmful chemicals and debris. View our Disclaimer.

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